Richard Wilson relates how the rare, highly radioactive, highly toxic element protactinium puzzled chemists for a long time, and was discovered and named twice from two different isotopes before ...

Isotopes Protactinium has 29 radioisotopes. Almost all naturally occurring protactinium is 231 Pa. It has a half-life of 32,700 years and is an alpha emitter formed by the decay of 235 U.

As discoverers of eka-tantalum’s longest-lived isotope, Meitner and Hahn named this new element protactinium. They had isolated protactinium 231, a member of the uranium 235 decay chain. In 1938, they ...

Protactinium can be prepared as a by-product of uranium processing. It can also be produced as an intermediate product of nuclear fission in thorium with neutrons in the high-temperature reactors.

Protactinium turns 100. The importance of protactinium chemistry for obtaining highly attractive fissile material from thorium has been recognized since the 1940s. However, the story really begins 100 ...

BEIJING, June 5 (Xinhua) -- A research team led by Chinese scientists has synthesized a new isotope protactinium-210 for the first time, which is currently the most neutron-defici ...

Chemists Rekindle Protactinium Studies Argonne researchers prepare a handful of fluoroprotactinates to take a new look at the rare element’s structure and bonding by Stephen K. Ritter ...

The modern atomic weight for the predicted element, or protactinium as it is now known, is close to 231. Even though this seems reasonably accurate, Mendeleev was somewhat unlucky regarding this ...

Richard E. Wilson, Stephanie De Sio, Valérie Vallet. Protactinium and the intersection of actinide and transition metal chemistry. Nature Communications, 2018; 9 (1) DOI: 10.1038/s41467-018-02972-z ...

Researchers from the Institute of Modern Physics (IMP) of the Chinese Academy of Sciences and their collaborators have synthesized a new isotope—protactinium-210—for the first time. It is the ...

Letter Published: 03 October 1936 The M IV,V -Absorption Edges of Protactinium (At. No. 91) V. DOLEJSEK & V. KUNZL Nature 138, 590 (1936) Cite this article ...

Researchers from the Institute of Modern Physics (IMP) of the Chinese Academy of Sciences and their collaborators have synthesized a new isotope—protactinium-210—for the first time. It is the ...